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CVE-2017-14318

22
FAUCET Score

CVE-2017-14318 is a NULL pointer dereference vulnerability affecting Xen versions 4.5.x through 4.9.x. The flaw occurs in the __gnttab_cache_flush function when processing grant table operations on pages owned by special domains lacking grant tables, leading to a system crash. With a CVSS score of 6.5 (Medium), this vulnerability requires local access and low privileges to achieve a denial of service. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.5.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*
4.5.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:*
4.5.2CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.5.2:*:*:*:*:*:*:*
4.5.3CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.5.3:*:*:*:*:*:*:*
4.5.5CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.5.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 89th percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xen

Vendor Advisories (1)

redhatCVE-2017-14318Important

xen: Missing check for grant table (XSA-232)

Sep 12, 2017

References

support.citrix.com / article/CTX227185
debian.org / security/2017/dsa-4050
securityfocus.com / bid/100817
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039349
Third Party AdvisoryVDB Entry
xenbits.xen.org / xsa/advisory-232.html
PatchVendor Advisory